The real problem : which flowers ?
The flowers have their own language :
The language of flowers, sometimes called floriography, was a Victorian-era means of communication in which various flowers and floral arrangements were used to send coded messages, allowing individuals to express feelings which otherwise could not be spoken.
The nuances of the language are now mostly forgotten, but red roses still imply passionate, romantic love and pink roses a lesser affection; white roses suggest virtue and chastity and yellow roses still stand for friendship or devotion. Also commonly known meanings are sunflowers, which can indicate either haughtiness or respect. Gerbera (daisy) means innocence or purity. The iris, being named for the messenger of the gods in Greek mythology, still represents the sending of a message. A pansy signifies thought, a daffodil regard, and a strand of ivy; fidelity.
Want to know more ? See Language of flowers